Not everyone can use a freeze ray to skip to the front of the line. If the coffee shop's owner wanted to shorten the amount of time that customers had to wait in line for their coffee, one option would be to... a. Increase the selling price of the shop's coffee, which would reduce the quantity demanded by customers, thereby shortening the line. b. Reduce the quantity of labor used to make the coffee by firing some of the coffee shop's employees. c. Reduce the selling price of the shop's coffee, which would reduce the quantity demanded by customers, thereby shortening the line. d. Make the shop's employees less productive by eliminating some of the capital they use to produce coffee drinks: the cappuccino machine, coffee bean grinder and cash register